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Related papers: MAGIC: Microlensing Analysis Guided by Intelligent…

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The numerical kernel approach to difference imaging has been implemented and applied to gravitational microlensing events observed by the PLANET collaboration. The effect of an error in the source-star coordinates is explored and a new…

Characterization of microlensing planets requires modeling of observed light curves including many parameters. Studying the dependency of the pattern of light curves on the lensing parameters and the correlations between the parameters is…

Solar and Stellar Astrophysics · Physics 2015-05-19 Cheongho Han , Kyu-Ha Hwang , Yoon-Hyun Ryu

Astrometric observations of microlensing events were originally proposed to determine the lens proper motion with which the physical parameters of lenses can be better constrained. In this proceeding, we demonstrate that besides this…

Astrophysics · Physics 2007-05-23 Cheongho Han

Highly magnified stars ($\mu$ $>$ 100) are now outinely identified as transient events at cosmological distances thanks to microlensing by intra-cluster stars near the critical curves of galaxy clusters. Using the {\it James Webb} Space…

Characterizing the nature and spatial distribution of the lensing objects that produce the previously measured microlensing optical depth toward the Large Magellanic Cloud (LMC) remains an open problem. We present an appraisal of the…

Quantifying image distortions caused by strong gravitational lensing and estimating the corresponding matter distribution in lensing galaxies has been primarily performed by maximum likelihood modeling of observations. This is typically a…

Instrumentation and Methods for Astrophysics · Physics 2017-09-20 Yashar D. Hezaveh , Laurence Perreault Levasseur , Philip J. Marshall

Fusing an arbitrary number of modalities is vital for achieving robust multi-modal fusion of semantic segmentation yet remains less explored to date. Recent endeavors regard RGB modality as the center and the others as the auxiliary,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Xu Zheng , Yuanhuiyi Lyu , Jiazhou Zhou , Lin Wang

With a handful of measurements of limb-darkening coefficients, galactic microlensing has already proven to be a powerful technique for studying atmospheres of distant stars. Survey campaigns such as OGLE-III are capable of providing ~ 10…

Astrophysics · Physics 2009-11-10 M. Dominik

Despite the remarkable developments of recent large models in Embodied Artificial Intelligence (E-AI), their integration into robotics is hampered by their excessive parameter sizes and computational demands. Towards the Vision-and-Language…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Liuyi Wang , Zongtao He , Mengjiao Shen , Jingwei Yang , Chengju Liu , Qijun Chen

Image inpainting aims to fill in the missing pixels with visually coherent and semantically plausible content. Despite the great progress brought from deep generative models, this task still suffers from i. the difficulties in large-scale…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Siyuan Yang , Lu Zhang , Liqian Ma , Yu Liu , JingJing Fu , You He

We introduce a diffusion-based approach for generating privacy-preserving digital twins of multi-room indoor environments from depth images only. Central to our approach is a novel Multi-view Overlapped Scene Alignment with Implicit…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Zhixuan Liu , Haokun Zhu , Rui Chen , Jonathan Francis , Soonmin Hwang , Ji Zhang , Jean Oh

To maximize the number of planet detections by increasing efficiency, current microlensing follow-up observation experiments are focusing on high-magnification events to search for planet-induced perturbations near the peak of lensing light…

Astrophysics · Physics 2009-11-10 Cheongho Han

Deep learning has shown remarkable results for image analysis and is expected to aid individual treatment decisions in health care. To achieve this, deep learning methods need to be promoted from the level of mere associations to being able…

Machine Learning · Computer Science 2022-05-02 Wouter A. C. van Amsterdam , Marinus J. C. Eijkemans

We present a novel Bayesian inference tool that uses a neural network to parameterise efficient Markov Chain Monte-Carlo (MCMC) proposals. The target distribution is first transformed into a diagonal, unit variance Gaussian by a series of…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-03 Adam Moss

The analysis of optical images of galaxy-galaxy strong gravitational lensing systems can provide important information about the distribution of dark matter at small scales. However, the modeling and statistical analysis of these images is…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-30 Adam Coogan , Konstantin Karchev , Christoph Weniger

Key questions that scientists and engineers typically want to address can be formulated in terms of predictive science. Questions such as: "How well does my computational model represent reality?", "What are the most important parameters in…

Mathematical Software · Computer Science 2012-02-07 Michael M. McKerns , Leif Strand , Tim Sullivan , Alta Fang , Michael A. G. Aivazis

Microlensing event OGLE-2002-BLG-055 is characterized by a smooth, slightly asymmetric single-lens curve with an isolated, secure data point that is ~0.6 magnitudes brighter than neighboring points separated by a few days. It was previously…

Astrophysics · Physics 2008-11-26 B. Scott Gaudi , Cheongho Han

In the upcoming synoptic all--sky survey era of astronomy, thousands of new multiply imaged quasars are expected to be discovered and monitored regularly. Light curves from the images of gravitationally lensed quasars are further affected…

Instrumentation and Methods for Astrophysics · Physics 2015-06-24 Georgios Vernardos , Christopher J. Fluke , Nicholas F. Bate , Darren Croton , Dany Vohl

The computation of microlensing light curves represents a bottleneck for the modeling of planetary events, making broad searches in the vast parameter space of microlensing extremely time-consuming. The release of the first version of…

Instrumentation and Methods for Astrophysics · Physics 2018-07-25 V. Bozza , E. Bachelet , F. Bartolić , T. Heintz , A. Hoag , M. Hundertmark

Eliminating image blur produced by various kinds of motion has been a challenging problem. Dominant approaches rely heavily on model capacity to remove blurring by reconstructing residual from blurry observation in feature space. These…

Image and Video Processing · Electrical Eng. & Systems 2024-04-23 Chengxu Liu , Xuan Wang , Xiangyu Xu , Ruhao Tian , Shuai Li , Xueming Qian , Ming-Hsuan Yang